CN2902888Y - Shaft driving structure capable of preventing oil leak at spline junction surface - Google Patents
Shaft driving structure capable of preventing oil leak at spline junction surface Download PDFInfo
- Publication number
- CN2902888Y CN2902888Y CN 200520010514 CN200520010514U CN2902888Y CN 2902888 Y CN2902888 Y CN 2902888Y CN 200520010514 CN200520010514 CN 200520010514 CN 200520010514 U CN200520010514 U CN 200520010514U CN 2902888 Y CN2902888 Y CN 2902888Y
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- CN
- China
- Prior art keywords
- shaft
- joint
- spline
- universal
- output shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Power Transmission Devices (AREA)
- General Details Of Gearings (AREA)
Abstract
The utility model discloses a shaft driving mechanism for preventing the oil linkage of the spine joint surface, and is characterized in that the output shaft is engaged with the body cover through a bear, the bear is axially located by the turnbuckle which is connected in the body by screws, the gimbal is connected with the output spline is axially located by the screws fixing on the output shaft, and the oil seal is provided between the gimbal and the body. The inner spline hole of the gimbal is provided with a ring groove with a seal ring inside, and the output shaft is shouldered shaft. Sleeved with a sealing ring and corresponding to the ring groove in the gimbal spline hole, the shaft portion of the shouldered shaft has a diameter shorter than that of the spline portion. The utility model has the advantages of simple structure and great seal effect of the spline joint surface of the shaft driving mechanism, and is capable of preventing the engine oil linkage from the spline joint surface.
Description
Technical field
The utility model relates to a kind of shaft drive structure, particularly a kind of shaft drive structure that can prevent the leakage of oil of splined driveshaft face.
Background technology
At present, the shaft drive output unit (as shown in Figure 1) of common motor cycle engine power mainly is made up of housing 11, output shaft 12, bearing 13, special-shaped swivel nut 14, oil sealing 15, universal-joint 16 etc.In operational process, machine oil is easy to flow in everything joint and the output shaft bonded assembly splined engagement face through the faying face of universal-joint and bearing, flows out outside the driving engine through the place, slit of packing ring and nut at last, causes lubricating oil leakage.
Summary of the invention
The purpose of this utility model provides a kind of shaft drive structure that prevents the leakage of oil of splined engagement face.It is simple in structure, and the good sealing effect to the splined engagement face of shaft drive structure can prevent that machine oil from leaking from the splined engagement face.
The purpose of this utility model is achieved in that output shaft cooperates with housing by bearing, bearing is threaded in the swivel nut axial location in the housing, universal-joint is connected with the output shaft spline, and with the nut axial location that is fastened on the output shaft, is provided with oil sealing between universal-joint and the housing.An annular groove is set in the internal splined hole of universal-joint, and seal ring is located in the annular groove, and output shaft is a stepped shaft, this stepped shaft with the universal-joint splined hole in the cooresponding shaft section diameter of annular groove less than the diameter of spline segment, seal ring is enclosed within on this shaft part.
Owing to adopted said structure, an annular groove is set in the internal splined hole of universal-joint, seal ring is located in the annular groove; Output shaft is a stepped shaft, this stepped shaft with the universal-joint splined hole in the cooresponding shaft section diameter of annular groove less than the diameter of spline segment, seal ring is enclosed within on this shaft part the splined engagement face is formed sealing, and the machine oil that flows in everything joint and the output shaft bonded assembly splined engagement face can not leaked.
The utility model is simple in structure, and the good sealing effect to the splined engagement face of shaft drive structure can prevent that machine oil from leaking from the splined engagement face.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structure diagram of shaft drive output unit;
Fig. 2 is a structure diagram of the present utility model.
The specific embodiment
Referring to Fig. 2, engine output shaft 2 is by bearing 3 and housing 1 bearing fit, and bearing 3 is threaded in special-shaped swivel nut 4 axial location in the housing 1.Universal-joint 6 is connected with output shaft 2 splines, and with the nut 8 and packing ring 7 axial location that are fastened on the output shaft 2.Be provided with oil sealing 5 between universal-joint 6 and the housing 1.An annular groove is set in the internal splined hole of universal-joint 6, and the diameter of annular groove is greater than the big footpath of universal-joint 6 female spliness, and an O-ring seals 9 is located in the annular groove.Output shaft 2 is a stepped shaft, this stepped shaft with universal-joint 6 splined holes in the cooresponding shaft section diameter of annular groove less than the diameter of spline segment, and less than the path of spline.O-ring seals 9 be enclosed within output shaft 2 with universal-joint 6 splined holes on the cooresponding shaft part of annular groove, form sealing to splined engagement face end face, prevent to leak machine oil from the splined engagement face.
During work, the power of driving engine passes to universal-joint 6 by output shaft 2, flows to the machine oil everything joint and the output shaft bonded assembly splined engagement face from the slit of the faying face of universal-joint and bearing, is stopped and can not leak by O-ring seals 9.
Claims (4)
1. shaft drive structure that prevents the leakage of oil of splined engagement face, output shaft (2) cooperates with housing (1) by bearing (3), bearing (3) is threaded in swivel nut (4) axial location in the housing (1), universal-joint (6) is connected with output shaft (2) spline, and with nut (8) axial location that is fastened on the output shaft (2), be provided with oil sealing (5) between universal-joint (6) and the housing (1), it is characterized in that: an annular groove is set in the internal splined hole of universal-joint (6), seal ring (9) is located in the annular groove, output shaft (2) is a stepped shaft, this stepped shaft with universal-joint (6) splined hole in the cooresponding shaft section diameter of annular groove less than the diameter of spline segment, seal ring (9) is enclosed within on this shaft part.
2. the shaft drive structure that prevents the leakage of oil of splined engagement face according to claim 1 is characterized in that: seal ring (9) is O shape circle.
3. the shaft drive structure that prevents the leakage of oil of splined engagement face according to claim 1 is characterized in that: output shaft (2) with universal-joint (6) splined hole in the cooresponding shaft section diameter of annular groove less than the path of spline.
4. the shaft drive structure that prevents the leakage of oil of splined engagement face according to claim 1 is characterized in that: the diameter of annular groove is greater than the big footpath of female splines in universal-joint (6) splined hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010514 CN2902888Y (en) | 2005-12-14 | 2005-12-14 | Shaft driving structure capable of preventing oil leak at spline junction surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520010514 CN2902888Y (en) | 2005-12-14 | 2005-12-14 | Shaft driving structure capable of preventing oil leak at spline junction surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2902888Y true CN2902888Y (en) | 2007-05-23 |
Family
ID=38078295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520010514 Expired - Fee Related CN2902888Y (en) | 2005-12-14 | 2005-12-14 | Shaft driving structure capable of preventing oil leak at spline junction surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2902888Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494010A (en) * | 2011-12-19 | 2012-06-13 | 昆山联德精密机械有限公司 | Automatically opening rotating shaft |
-
2005
- 2005-12-14 CN CN 200520010514 patent/CN2902888Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494010A (en) * | 2011-12-19 | 2012-06-13 | 昆山联德精密机械有限公司 | Automatically opening rotating shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20121214 |